Metacognition, the ability to reflect upon, and evaluate our own beliefs, can help us avoid making decisions based on unreliable evidence. Here, we provide empirical tests of the importance of human metacognition during the COVID-19 pandemic. ...Metacognition, our ability to reflect on our own beliefs, manifests itself in the confidence we have in these beliefs, and helps us guide our behavior in complex and uncertain environments. Here, we provide empirical tests of the importance of ...